MESON Chess Problem Database
Problem Display
PID: 15710 (5r2/1NRPprbb/4kpp1/pQ2B3/R4p1n/PK1N1p2/BPP5/6nq w - - 0 1)
Degener, Udo
1st Prize, Hermanson JT, 1985-1987
#2
12 + 14
| 721 | Variantim | 1990 |
| 3297 | FIDE Album (1986-1988) | 1995 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc8
- 2.dxc8Q#
- 2.dxc8B#
- 1...Sf5
- 2.Kc3#
- 2.Sxf4#
- 2.Qc4#
- 1...f5
- 2.Kc3#
- 2.Sxf4#
- 2.Qc4#
- 2.Qc6#
- 1...Rc8
- Tries
- 1.Sbc5+?
- 1...Kd5
- 2.Kc3#
- 2.Rd4#
- 2.Qc4#
- 2.Qc6#
- 2.Qb7#
- 2.c4#
- 1...Kf5!
- 1...Kd5
- 1.Bc3?
- threat
- 2.Sxf4#
- 2.Re4#
- 1...Qh2
- 2.Re4#
- 1...Bh6
- 2.Re4#
- 1...Se2
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Sg2
- 2.Re4#
- 1...f2
- 2.Sxf4#
- 1...f5
- 2.Sxf4#
- 2.Qc4#
- 2.Qc6#
- 1...g5!
- threat
- 1.Bd4?
- threat
- 2.Kc3#
- 2.Sxf4#
- 1...Qh2
- 2.Kc3#
- 1...Bh6
- 2.Kc3#
- 1...Sh3
- 2.Kc3#
- 1...Sg2
- 2.Kc3#
- 1...f2
- 2.Sxf4#
- 1...g5
- 2.Kc3#
- 1...Se2!
- threat
- 1.Bxf4?
- threat
- 2.Kc3#
- 2.Re4#
- 1...f5
- 2.Qc6#
- 1...Se2
- 2.Re4#
- 1...g5
- 2.Kc3#
- 1...f2!
- threat
- 1.Bd6?
- threat
- 2.Kc3#
- 2.Sxf4#
- 2.Re4#
- 1...exd6
- 2.Re4#
- 1...Qh2
- 2.Kc3#
- 2.Re4#
- 1...Bh6
- 2.Kc3#
- 2.Re4#
- 1...Se2
- 2.Re4#
- 1...Sh3
- 2.Kc3#
- 2.Re4#
- 1...Sg2
- 2.Kc3#
- 2.Re4#
- 1...f2
- 2.Sxf4#
- 1...g5
- 2.Kc3#
- 1...f5!
- threat
- 1.Rxf4?
- threat
- 2.Kc3#
- 2.Ka4#
- 2.Qc4#
- 2.Qc6#
- 1...a4+
- 2.Kc3#
- 2.Kxa4#
- 2.Kb4#
- 1...Se2
- 2.Ka4#
- 2.Qc4#
- 2.Qc6#
- 1...Sf5
- 2.Kc3#
- 2.Ka4#
- 2.Qc4#
- 1...f2!
- threat
- 1.Qa6+?
- 1...Kd5
- 2.Kc3#
- 2.Rd4#
- 2.Rc5#
- 2.Qc4#
- 2.Qc6#
- 1...Kf5!
- 1...Kd5
- 1.Qd5+?
- 1...Kxd5
- 2.Kc3#
- 1...Kf5!
- 1...Kxd5
- 1.Qb6+?
- 1...Kd5
- 2.Kc3#
- 2.Rd4#
- 2.Rc5#
- 2.Qc6#
- 1...Kf5!
- 1...Kd5
- 1.Sbc5+?
- Keys
- 1.Bxf6!
- threat
- 2.Qe5#
- 1...Kxf6
- 2.Qe5#
- 1...Rxf6
- 2.Kc3#
- 1...Bxf6
- 2.Sxf4#
- 1...exf6
- 2.Re4#
- threat
- 1.Bxf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(n);OGATE::PXR(n)=Q
- Tries
- Try
- S(J);CHECK
- Refutation
- K(g);S_FLIGHT
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- Q(b);::R(G)
- B(l);::R(G)
- S(a);::R(G)
- S(e);::R(G)
- P(c);::S(F),XP(d)
- Refutation
- P(i);
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- Q(b);::B(A)+K(E)
- B(l);::B(A)+K(E)
- S(a);::B(A)+K(E)
- S(e);::B(A)+K(E)
- P(c);::S(F),XP(d)
- P(i);::B(A)+K(E)
- Refutation
- S(a);
- Try
- B(I);XP(d)
- Threat
- DUALS(2)
- Vars
- P(h);SBLOCK::QAR2(H)
- S(a);::R(G)
- P(i);::B(A)+K(E)
- Refutation
- P(c);
- Try
- B(I);
- Threat
- DUALS(3)
- Vars
- P(j);XB(I)::R(G)
- S(a);::R(G)
- P(c);::S(F),XP(d)
- P(i);::B(A)+K(E)
- Refutation
- P(h);
- Try
- R(G);XP(d)
- Threat
- DUALS(4)
- Refutation
- P(c);
- Try
- Q(H);CHECK
- Refutation
- K(g);S_FLIGHT
- Try
- Q(H);CHECK
- Vars
- K(g);S_FLIGHT,XQ(H)::B(A)+K(E)
- Refutation
- K(g);S_FLIGHT
- Try
- Q(H);CHECK
- Refutation
- K(g);S_FLIGHT
- Try
- Actual
- B(I);XP(h)
- Threat
- QAR1(H)
- Vars
- K(g);P-FLIGHT,XB(I)::QAB1(H)
- R(k);SBLOCK,XB(I)::B(A)+K(E)
- B(l);SBLOCK,XB(I)::S(F),XP(d)
- P(j);SBLOCK,XB(I)::R(G)
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